TY - JOUR
T1 - Onset of flow in a horizontally vibrated granular bed
T2 - Convection by horizontal shearing
AU - Tennakoon, S. G.K.
AU - Kondic, L.
AU - Behringer, R. P.
PY - 1999/2/15
Y1 - 1999/2/15
N2 - We present experimental observations of the onset of flow for horizontally vibrated 3D granular systems. For accelerations Γ above Γ*, the top layers of granular material flow, leading to convection with motion both parallel and transverse to the shaking; the lower part of the layer moves with the shaker in solid body motion. With increasing Γ, more of the layer becomes liquefied. The initial bifurcation is backward, but a small amount of fluidization by gas flow lifts the hysteresis. A new convective mechanism, which we explore both experimentally and computationally, associated with horizontal shearing at the walls, is identified as the mechanism driving the transverse convective flow.
AB - We present experimental observations of the onset of flow for horizontally vibrated 3D granular systems. For accelerations Γ above Γ*, the top layers of granular material flow, leading to convection with motion both parallel and transverse to the shaking; the lower part of the layer moves with the shaker in solid body motion. With increasing Γ, more of the layer becomes liquefied. The initial bifurcation is backward, but a small amount of fluidization by gas flow lifts the hysteresis. A new convective mechanism, which we explore both experimentally and computationally, associated with horizontal shearing at the walls, is identified as the mechanism driving the transverse convective flow.
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U2 - 10.1209/epl/i1999-00190-3
DO - 10.1209/epl/i1999-00190-3
M3 - Article
AN - SCOPUS:0033557017
SN - 0295-5075
VL - 45
SP - 470
EP - 475
JO - Lettere Al Nuovo Cimento
JF - Lettere Al Nuovo Cimento
IS - 4
ER -